FCCS Groovy DataGridBuilder Failing with Security Filtering Error Despite Valid Smart View Access

Summary:

We are trying to write back data to FCCS using a Groovy rule with DataGridBuilder.

The requirement is to write data back to the same intersection (for testing purposes first) and later extend it for reverse Entity/ICP postings.

The user is able to manually submit data successfully through Smart View for the exact same intersection, but the Groovy script fails during builder.build(status) with the error:

Build FAILED: Unable to load the grid after security filtering was applied, please verify your access to specified members.

What is confusing is:

• The same user can input data manually through Smart View